Several modules defines records with the external ID `base.foo_bar` while it is
created inside this module (typically menus and groups).
While there is no technical reasons to do so but this may introduce issues:
- these records will not be deleted during uninstall
- if a language is loaded before the installation of the module, it won't be
translated
The uninstallation will only remove the records with an external id linked to
this module (these would only be removed when removing base).
Installing a language before the module will drop the translations not linked
to an existing external id (as it can not be resolved).
This commit correct all the external ids tagged as from base or other incorrect
modules.
This commit remove required alias on res.users model. It also removes the
inheritance of mail.alias.mixin. The field alias_id is kept and allow people
to use aliases on users if they want. However there is no default void alias
created for each user anymore.
Default from of mail.message does not use user alias anymore. Indeed this
creates issues with aliases not being correctly configured and can be
confusing compared to private channels. Using user aliases is therefore
now done manually instead of being a default behavior.